<html xmlns="http://www.w3.org/1999/xhtml" xmlns:xbl="http://www.mozilla.org/xbl">
<head>

<xbl:bindings xmlns="http://www.mozilla.org/xbl"><xbl:binding id="a"><xbl:content>
<span><span></span><xbl:children/></span>
</xbl:content></xbl:binding></xbl:bindings>

<script type="text/javascript">

function boom()
{
  var s = document.getElementById("s");
  var anon = document.getAnonymousNodes(s)[0];

  while (anon.firstChild)
    anon.removeChild(anon.firstChild);

  document.documentElement.style.MozBinding = "url('data:text/xml,%3Cbindings%20xmlns%3D%22http%3A%2F%2Fwww.mozilla.org%2Fxbl%22%3E%3Cbinding%20id%3D%22foo%22%3E%3Ccontent%3EQ%3C%2Fcontent%3E%3C%2Fbinding%3E%3C%2Fbindings%3E%0A')";
}

</script>
</head>

<body onload="boom();"><span id="s" style="-moz-binding: url('#a');"></span></body>
</html>
